Gas and oil saving device.



H. R. SCOTT.

GAS AND OIL SAVING DEVICE. I APPLICATION FILED AUG-22 IQIB- I 1,299,790. Patented Apr. 8,1919.

2 SHEETSSHEET I.

INVENTOI? l7. 1Q 3697?? A TTOR/VEYS H. R. SCOTT.

GAS AND on SAVING DEVICE.

APPLICATION FILED AUG-22, I918.

1,299,79U, Patented Apr. 8, 1919.

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HARRY ROSKO SCOTT, 0F LORDSBURG, NEW MEXICO, ASSIGNOR OF ONE-THIRD TO 7 DANIEL L. HILL AND ONE-THIRD TO MELLEGE S. ASIBELL, BOTH OF LORDSBURG,

NEW MEXICO.

GAS AND OIL SAVING DEVICE.

Specification of Letters Patent.

Patented Apr. 8, 1919.

Application filed August 22, 1918. Serial No. 251,043.

citizen of the United States, and a resident of Lordsburg, in the county of Grant and State of New new and useful Improvements in Gas and Oil Saving Devices, of which the following is a specification.

My invention is an improvement in gas and oil saving devices, and has for its object. to provide a device of the character s ecified adapted for use with internal com ustion engines, for forcing a certain quantity of cold air into the rear of the crank CEISQgtO prevent heating of the oil and motor heat from the cylinders, and for drawing the 'air laden with fuel and oil from the front of the crank case through the carbureter.

In the drawings:

Figure 1 is a side view of an engine provided with an' embodiment of the improvement. showing the means for forcing the air into the crank case;

Fig. 2 is a similar view from the other side, showing the means of drawing the air from the crank case; i

Fig. 3 is an enlarged detail of the first named mechanism Fig. 1 is a similar view of the last named mechanism.

As is known, motors of the four cycle type have inclosed crank cases, with screened openings to permit the pressure to escape from the crank case. These motors, after they have been run for a short length of time, lose power because of leakage past the piston ring, into the crank case, and this leakage causes heating of the oil and of the motor. To prevent this heating, means is provided for forcing a certain amount of cold air into the rear of the crank case, and in order to utilize the fuel and oil, means is provided for drawing the air from the crank case at the front thereof through the carbureter.

The first named means comprises a funnel shaped or frusto-conical tubular casing 3, having its ends open as shown, and this casing is connected by a flexible tube 4 with one end of an elbow 5. This elbow is secured to a plate 6, which has openings, as shown in Fig. 3, for permitting the plate to be secured to the crank case 2 at the rear thereof. The casing 3 is arranged near the Mexico, have invented certain front of the engine, and has its large end toward the, front, and is secured in place by means of angle plates 7, the said plates being secured to the engine frame.

A screen 8 of perforated material, as, for. instance, wire gauze, is arranged between the casing 3 and the tube 4 for straining the air admitted to the crank case, and it will be evident that when the motor is moving, as, for instance, in use with a motor vehicle, air will be forced through the funnel shaped casing and the pipe 4 into the crank case at the rear thereof, cooling the crank case, the oil therein and the motor.

The means for saving the fuel and oil, as shown more particularly in Fig. 4, comprises a pair of cylindrical casings 9 and 10, which are arranged in spaced approximately parallel relation and are connected by an inclined pipe 11.

Baflle plates 12 are arranged in the casing 9, the said plates being inclined, as shown, to constrain the air passing through the casing to follow a sinuous course, and the air passing through the casing 9 leaves said casing by way of the pipe 11, which opens into the casing 10.- The lower end of the casing 9 is connected to the crank case at the front thereof, as indicated at 13, and a suitable cover 14, which is removable, is connected wlth the top of said casing 9. The

casing 10 has a drain valve 15 at its lower end and a lateral nipple 16 near its upper end, and a flexible pipe 17 is connected with this lateral nipple.

A U-shaped union 18 connects the other end of the flexible tube with the carbureter, and it will be evident that the suction of the engine through the carbureter will draw the air laden with oil and fuel from the crank case, and draw it to the carbureter, thus utilizing this oil and fuel which is ordinarily wasted.

In use, there is a continual passage of cold air into the crank case and of heated air therefrom so that the crank case, the oil and the motor will be cooled and, in addition, the usually wasted oil and fuel will be utilized.

I claim:

1. In an internal combustion engine, the combination with the crank case, of means for forcing cold air into the crank case at the rear thereof, and means connected with ios the carbureter for withdrawing the heated air from the. crank case at the front thereof, said last named means comprising a pair of casings arranged in spaced approximately parallel relation, one of said casings being connected to the crank case at its lower end, the connection between the casings inclinin downwardly from the first named to the last named casing, and a connection between the last named casing and the carbureter, both of said casings having bafile plates, and the last named casing having a drain valve.

2. In an internal combustion engine, the

a combination with the crank case, of means for forcing cold air into the crank case at the rear thereof, means connected with the c'arbureter for withdrawing the heated air from the crank case at the front thereof, said last named means comprising a pair of casings arranged in spaced approximately parallel relation, one of said casings-being connected to the crank case at its lower end,

the connection between the casings inclining downwardly from the first named to the last named casing, and a connection between the last named casing and the'carbureter.

3. In an internal combustion engine, the combination with the crank case, of'means for forcing cold air into the crank case, means connected with the carbureter for withdrawing the heated air from the crank case, said last named means comprising a pair of casings arranged in spaced approximately parallel relation, one of said casings eing connected to the crank case at its lower end, the connection between the casings inclining downwardly from the first named to the lastnamed casing, and a connection between the last named casing and the carbureter.

. HARRY ROSKO SCOTT. Witnesses G. F. LESLIE, GEO. B. OCONNEL. 

